Why Is My Dishwasher Blinking? Uncover the Reason & Solution

You’ve just finished loading the dishwasher, hit start, and walked away, only to return and find the dreaded blinking lights. But why is your dishwasher blinking and not starting? Don’t worry; we’ll uncover the reasons behind this frustrating issue and provide practical solutions to get your dishes sparkling clean again.

Why Is My Dishwasher Blinking and Not Starting: Common Causes

Dishwashers are complex machines, and a blinking light can signify various problems. Understanding the potential causes is the first step toward resolving the issue effectively. Here are some of the most common reasons why your dishwasher might be blinking and not starting:

• Dishwasher blinking lights explained: Blinking lights on your dishwasher often indicate an error code or specific issue. The blinking pattern can help you identify the problem, whether it’s a door latch malfunction, clogged filters, or control board failure.
• Door latch or switch malfunction: If the dishwasher door isn’t properly closed or the latch is faulty, it won’t start the cycle. A malfunctioning door switch can also prevent the dishwasher from detecting when the door is closed, causing it to blink and refuse to start.
• Clogged filters or spray arms: Over time, food particles and debris can accumulate, clogging the filters and spray arms. This blockage can prevent the dishwasher from functioning correctly, leading to blinking lights and a failure to start.
• Drain issues: A blocked drain line or a faulty drain pump can cause water to back up, triggering the dishwasher to blink and not start the cycle. This issue can also lead to leaks and other potential problems if left unaddressed.
• Control board or electronic control problems: The control board is the dishwasher’s brain, and if it malfunctions, it can cause various issues, including blinking lights and a failure to start. Electronic control problems can also stem from wiring issues or power surges.

Troubleshooting Steps for a Blinking, Non-Starting Dishwasher

Once you’ve identified the potential cause of your blinking dishwasher, it’s time to roll up your sleeves and start troubleshooting. Here are some steps you can take to diagnose and potentially resolve the issue:

1. Check the door latch and door switch: Ensure the dishwasher door is properly closed and the latch is functioning correctly. If the door switch is faulty, it may need to be replaced.
2. Clean filters, spray arms, and remove clogs: Remove and clean the dishwasher filters and spray arms, ensuring no food particles or debris are blocking water flow. You may also need to check for clogs in the drain line or pump.
3. Inspect drain line and drain pump: Check the drain line for any kinks or blockages, and ensure the drain pump is working correctly. If the pump is faulty, it may need to be replaced.
4. Test control panel and electronic controls: If the issue seems to be related to the control board or electronic controls, you may need to test and potentially replace these components. This can be a more complex task, and you may want to consider seeking professional assistance.
5. Reset the dishwasher: Sometimes, a simple reset can resolve blinking light issues. Unplug the dishwasher, wait a few minutes, and then plug it back in. This can clear any temporary glitches or errors and allow the dishwasher to start a new cycle.

DIY Fixes for Blinking Dishwasher Issues

If you’re handy and comfortable with DIY repairs, you can attempt to fix some of the more common blinking dishwasher issues yourself. Here are a few DIY fixes you can try:

• Step-by-step guide to fix door latch/switch: Replacing a faulty door latch or switch can often resolve blinking issues caused by the dishwasher not detecting the door is closed. Follow a step-by-step guide to safely replace these components.
• How to unclog filters, spray arms, and drain: Clogged filters, spray arms, and drains are common culprits for blinking dishwashers. Learn how to properly clean and unclog these components to restore proper water flow.
• Replacing a faulty drain pump or control board: If your troubleshooting points to a faulty drain pump or control board, you may be able to replace these components yourself. However, be cautious when working with electrical components, and follow safety guidelines.
• DIY dishwasher reset and calibration process: After making repairs or replacements, you may need to reset and recalibrate your dishwasher to ensure it functions correctly. Follow the manufacturer’s instructions for your specific model.

When to Call a Professional Repair Service

While some blinking dishwasher issues can be resolved with DIY fixes, there are instances when it’s best to call in a professional repair service. Here are a few scenarios where seeking expert assistance may be the wiser choice:

• Complex electrical or control board problems: If you’re unsure about working with electrical components or suspect a complex issue with the control board, it’s safer to let a professional handle the repair.
• Recurring issues after DIY fixes: If you’ve attempted DIY repairs but the blinking issue persists, it may be time to seek professional help. A trained technician can often identify and resolve underlying issues that may be overlooked.
• Dishwasher still blinking and not starting: If you’ve exhausted all troubleshooting steps and DIY fixes, and your dishwasher still won’t start, it’s best to call a repair service to diagnose and fix the issue properly.
• Cost comparison: In some cases, the cost of professional repair may be comparable to or even less than the cost of purchasing and installing replacement parts yourself. Consider the overall cost and convenience when deciding between DIY or professional repair.

To help prevent future blinking light issues and extend the lifespan of your dishwasher, it’s essential to practice regular preventive maintenance. Here are some tips to keep your dishwasher running smoothly:

• Regular cleaning and descaling routine: Follow the manufacturer’s recommendations for cleaning and descaling your dishwasher. This helps remove built-up grime, limescale, and mineral deposits that can cause clogs and other issues.
• Checking door gaskets and seals: Inspect the door gaskets and seals periodically for any wear or damage. Replacing worn gaskets can prevent leaks and ensure the dishwasher door closes properly.
• Using the right detergent and rinse aid: Choose high-quality detergents and rinse aids designed specifically for your dishwasher model. Using the wrong products can lead to buildup, residue, and potential issues.
• Proper loading techniques: Load your dishwasher correctly, avoiding overcrowding and ensuring water and detergent can reach all surfaces. This helps prevent clogs and improves cleaning efficiency.

By following these preventive maintenance tips and addressing blinking light issues promptly, you can ensure your dishwasher continues to serve you well for years to come, providing sparkling clean dishes with every cycle.